High-voltage circuit breaker laser detection device

Abstract

The invention relates to the technical field of circuit breaker detection, and discloses a high-voltage circuit breaker laser detection device which comprises a laser detection device body installed on one side of a circuit breaker. The laser detection device comprises a shell, a detection head is fixedly arranged on one side of the shell, an echo processing unit is arranged in the shell, the echo processing unit is connected with a signal amplifying and shaping unit, the signal amplifying and shaping unit is connected with a control processing unit, the control processing unit is connected with a communication device, and the communication device is connected with a wireless communication module. And a monitoring end is connected through the communication device. The monitoring terminal comprises a server connected with the communication device, and the server is connected with a PC terminal and is wirelessly connected with an intelligent terminal. The communication device is a wired network card or a wireless communication device. A switch body cannot be impacted. Measurement of the just-opening speed, the just-closing speed, the average speed and the maximum speed of the high-voltage circuit breaker switch can be completed. Operation is simple, misoperation and mistaken setting are reduced, and practicability is high.

Description

Technical Field

[0001] The invention relates to the technical field of circuit breaker detection, and in particular to a high-voltage circuit breaker laser detection device. Background Art

[0002] High-voltage circuit breakers are the most important switchgear in power systems. They are responsible for both control and protection. Mechanical characteristic parameters are one of the important parameters for judging circuit breaker performance. Speed ​​parameters are an important evaluation parameter for circuit breaker quality, which can directly reflect the mechanical coordination, electrical coordination and performance of circuit breakers.

[0003] The speed test of high-voltage circuit breakers has long been considered a difficult point in the mechanical characteristic test of circuit breakers. The difficulty of on-site detection has resulted in this parameter not being used in circuit breaker defect analysis.

[0004] The opening and closing speed of high-voltage circuit breakers currently on the market is one of the important factors affecting the breaking performance of circuit breakers;

[0005] If the opening and closing speed is too fast, the circuit breaker operating mechanism and transmission components will exceed the mechanical force they can withstand, causing damage to the buffer and shortening the service life of the circuit breaker; if the opening speed is too slow, the normal operating current or fault current cannot be quickly cut off, which will prolong the arcing time between the contacts and cause hazards such as contact burning or even arc extinguishing chamber explosion; if the closing speed is too slow, when the circuit breaker is closed on a short-circuit fault, it may not be able to overcome the effect of the contact closing electromotive force, thereby causing contact vibration or movement stagnation, and then causing contact burning or arc extinguishing chamber explosion.

[0006] The speed parameter is an important evaluation parameter for the quality of circuit breakers, which directly reflects the mechanical coordination, electrical coordination and performance of the circuit breaker. The speed test of high-voltage circuit breakers is a difficult point in the field of mechanical characteristic testing of circuit breakers.

[0007] Existing speed sensors are all contact sensors, mainly linear resistance sensors, rotary resistance sensors, rotary grating sensors, and acceleration sensors. These sensors need to be installed on the crank arm of the high-voltage circuit breaker mechanism box or the crank arm of the transmission connecting rod. The installation conditions are relatively harsh, otherwise there will be problems such as inaccurate speed measurement or no speed curve.

[0008] Existing sensors are prone to bumping or collision during testing, and once they hit the switch body, they can easily cause safety risks to the switch.

[0009] Therefore, in view of the above problems, a high-voltage circuit breaker laser detection device is needed. Summary of the invention

[0010] The purpose of the present invention is to provide a high-voltage circuit breaker laser detection device. The present invention develops a laser non-contact speed sensor. The present invention has no installation difficulty, will not hit the switch body, and has extremely high safety. It can complete the measurement of the just-opening speed, just-closing speed, average speed, and maximum speed of the high-voltage circuit breaker switch. The operation is simple, the learning operation time is reduced, and the misoperation and missetting are reduced, and the practicability is strong.

[0011] The present invention is implemented as follows. The present invention includes a laser detection device installed on one side of a circuit breaker; the laser detection device includes a shell, a detection head is fixedly provided on one side of the shell, an echo processing unit is provided in the shell, a signal amplification and shaping unit is connected to the echo processing unit, the signal amplification and shaping unit is connected to a control processing unit, and the control processing unit is connected to a communication device.

[0012] The communication device is a wired network card or a wireless communication device. The wireless communication device is a 4G DTU, a 5G DTU, a Wifi unit or a Lora unit.

[0013] A monitoring terminal is connected via the communication device, and the monitoring terminal includes a server connected to the communication device. The server is connected to a PC terminal, and is wirelessly connected to an intelligent terminal.

[0014] Furthermore, the smart terminal is a smart phone or a tablet computer, and there is at least one smart terminal, so that the staff can connect to the server through the smart terminal to query data.

[0015] Furthermore, the control processing unit adopts an Arm 7 type control processing unit.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By developing a laser non-contact speed sensor, the present invention has no difficulty in installation, will not hit the switch body, and is extremely safe. It can complete the measurement of the opening speed, closing speed, average speed, and maximum speed of the high-voltage circuit breaker switch. It is simple to operate, reduces the learning operation time, reduces misoperation and missetting, and is highly practical.

[0018] 2. The present invention processes the monitored data through a control processing unit, and then sends the monitored data to a server at the monitoring end through a communication device for data storage. It is also convenient for staff to connect to the server through an intelligent terminal for data query, and the operation is quick, simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the device structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the system structure of the present invention;

[0022] Figure 3 is a circuit diagram of a control processing unit of the present invention;

[0023] Among them, there are a circuit breaker 1, a circuit breaker switch 10, a housing 2, a detection head 21, and a detection head laser line 22. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] In this embodiment, please refer to Figure 1-Figure 3 The present invention includes a laser detection device installed on one side of the circuit breaker; the laser detection device includes a shell 2, and a detection head 31 is fixedly provided on one side of the shell 2, and the detection head 31 is a laser detection head; when installing, the detection head laser line 22 of the laser detection head is aligned with the circuit breaker switch 10.

[0026] An echo processing unit is arranged in the shell, a signal amplification and shaping unit is connected to the echo processing unit, and the signal amplification and shaping unit is connected to a control processing unit, and the control processing unit is an Arm 7 type control processing unit.

[0027] The control processing unit is connected to a communication device,

[0028] The communication device is a wired network card or a wireless communication device. The wireless communication device is a 4G DTU, a 5G DTU, a Wifi unit or a Lora unit.

[0029] A monitoring terminal is connected via the communication device, and the monitoring terminal includes a server connected to the communication device. The server is connected to a PC terminal, and is wirelessly connected to an intelligent terminal.

[0030] In this embodiment, the smart terminal is a smart phone or a tablet computer, and there is at least one smart terminal, which is convenient for the staff to connect to the server through the smart terminal to query data.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high voltage circuit breaker laser detection device, characterized in that: The invention comprises a laser detection device installed on one side of a circuit breaker; the laser detection device comprises a housing (2), a detection head (21) is fixedly provided on one side of the housing (2), an echo processing unit is provided in the housing (2), a signal amplification and shaping unit is connected to the echo processing unit, the signal amplification and shaping unit is connected to a control processing unit, the control processing unit is connected to a communication device, and a monitoring terminal is connected via the communication device.

2. A high voltage circuit breaker laser detection device according to claim 1, characterized in that: The monitoring end includes a server connected to the communication device, the server is connected to a PC end, and is wirelessly connected to a smart terminal.

3. A high voltage circuit breaker laser detection device according to claim 2, characterized in that: The communication device is a wired network card or a wireless communication device.

4. A high voltage circuit breaker laser detection device according to claim 3, characterized in that: The wireless communication device is a 4G DTU, a 5G DTU, a Wifi unit or a Lora unit.

5. A high voltage circuit breaker laser detection device according to claim 2, characterized in that: The smart terminal is a smart phone or a tablet computer, and there is at least one smart terminal.

6. A high voltage circuit breaker laser detection device according to claim 1, characterized in that: The control processing unit adopts an Arm 7 type control processing unit.

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